Baling press



H. HILL BA-LING PRESS Oct. 18, 1927.

4 sheets-snaai 2 vFiled sept. 24. 1923 -l-/L HILL BALING PRESS v Filed Sept. 24. 1923 4 SheetsrSheet 4 Patented Oct.k 18, 1927.

narran sra-Tas 1,545,355' eA'raNr ortica.

HERMANN HILL, CE EREDONIA, NEW Yonaassenon, BY" MEsNE AssrGNMENTs, "ro

' ECONOMY Ear-EE. COMPANY, o'E ANN essere, MrCnrGAN, A Coaroaa'rroN oE MrCH- IGAN.

BALING rEEss.

Application 166. September 24, 1923. Serial No. 664,333. Y

This invention relates tobaling presses or more particularly topower driven presses.

The principal object of the invention to provide means for swinging the baling plunger clear of the top of the baling chamber, thus permitting loading or charging 'of the baling chamber from the top thereof.

@ther and further objects and advantages of the invention will be obvious as the speci fication is read in connection with the drawings.

In the accompanying drawings forming part of this specification:

Figure 1 is a side elevation of the baling` press; n

Figure 2 is a section on the line 2-2 of Figure 8; y

Figure 3 is a section on the line 3 3 of- Figure 8;

Figure 4 is a detail side elevation showing one of the guide rollers engaging in one of the channels orv tracks;

Figure 5 is a section on the line 5-5 of Figure 3; p

Figure '6 is a section on the line 6 6 of Figure 3; V

Figure 7 is a section on the line 7-7 of Figure;

Figure 8' is a in section of the upper portion of the press;

Figure 9 is a detail side elevation showing the means for operating the vertical screws;

Figure 10 is a detail fragmentary plan of some of the parts shown inv Figure 9;

Figure 11 is a similar view to Figure 2 showing the plunger member at the limit of its outward swinging movement and Figure 12 isa side view yof one lof the pressure yokes detached.

Referring more particularly to the drawings wherein like reference numerals denote corresponding parts throu,f ;hout the several views, 1, representsa'base comprising a pair of parallel longitudinally disposed spaced I beams 2 and 3, connected together by a plurality of transverse rods 4. The beams 2 and 3 are also braced by a pair of metallic rboxings or platforms 5 and 5 located at op posite ends of and spanningthe said beams 2 and 3. A plurality7 of short transverse I beams 6, spanthe space between the platlforms 5 and 5 and rest upon the beams and 3, intermediate the ends thereof. These transverse beams support a sheet metal plate detail sidev elevation partly- 7 which in turn supports thevtransversely arranged wooden slats 8, the parts just'described,vthat is, transverse beams 6, plate 7.

and slatsl 8, constituting the platen ofthe i.

baling chamber to be referred to hereinafter. o The platform 5 positioned at what may be. termed the motor end of the base 1, supports a pair of spacedT shaped vertical beams 9while` the platform 5 at the opposite end of the base also supports a pair of similarly shaped and spaced .beams 10. rThese beams 9 and 10 are suitably braced at intervals by'side beams 11, and end beams 12, and'at their lower ends are braced by angle brackets or braces 13. i

l The ba-ling chamber comprises an upper Lfixed rectangular `hopper portion 14, en-V k16, are swung to closed position.

The platforms 5 and 5 are formed with 'bearings V19 and 2O in which 4vertical screws 21 and 22 are rotatably mounted, screwthreaded collars 23 and 24 serving to sup-V port the respective screws 1n their bearings.

lConnected to the lower extremities of the respective screws are sprocket wheels or gears 25 -and y26 which are driven by a sprocket chain 27. The vscrew 22, alsocarries a gear 28,'` directly above the sprocket wheel 26, which meshes with a gear-29, on 'thelower end of al vertical shaft y30. This vertical shaft 30, which is rotatably'mounted in an arm 31, Drojecting from the platform 5 is formed with a worm gear 32, driven'from the motor 25, by meansV of a worm 92, connected to the motor 25, by any suitable flexible coupling. i y

The piston or plunger member rof the press comprises what maybe termed a plunger bar 39, of heavy steel, and preferably rectangular in cross section. Rigidly secured to the sides of this bar 39,are a pair lof rectangular shaped brackets 40, to the bottoms ofwhich Y the nuts proper.` The purpose of the 'insert ineinlier is to permit oit convenient replace-V bronze keved to thenuts iro ier h ke s 5() y hut it is obvious that the threaded inserts may he dispensed with and the threads formed on nient should tlietlireads become worn, Each nut d3, is formed with hiiliircated oppositely extending portions 4A, adapted to engage the resp'ective T shapedvertical lieams 9 and l0, thus preventing rotation ot the nuts but allowing the latter to move up and down upc-ii the screws when the screws are turned. Each nut 435 has two oppositely disposed upstanding ears 45, to which the lower ends of `parallel links 46, are pivotally connected.,` `The upper ends of these links are pivotally connected to opposite sides of pressure yokes 47, it being understood that there is a yoke 4:7, 'at each endof the machine, thatV 1s one `for each nut andset of parallel links. These pressure yokes exert pressure upon the ends oit the plunger bar during the downward stroke and also serve :is a hack stop to limit the inward swing oi the plunger loar `when the latter is loeing;` swung to operative position as will lieliereinat'ter explained.

A pair of rocker arins 5l, having their upper and lower ends notched or forked as at 52 and frespectively arepivotally supported intermediately their ends to the top port-ions oit the respective pressure yokes 47,

hetween the pivot connections of the upper ends of the links 46, hy means of pivot pins 51.1. The plunger liar 39, passes at one end through the opening oi.' slot55, between the cud wall boards or plates l5, and at the opposite end through the openingror slot not shown) 'lorined hetween the adjacent edges of the angularly disposed plates it?? when the doors 16, are closed. The opposite ends o-i` the plunger har seat in the notches 53, formed inthe lower ends oil? the roc-ker arms 5l, andare retained and supported therein hy pins 56, carried by the plungerliar and eX- tending through vertical elongatedY slots `or openings 57, in the lowernctched ends of the rocker arms. Y y 1 It will he understood'tliat simultaneous rotation of the screws 2l and 22, in the appropriate direction hy means of the motor 25, and gearing previously described, will cause the nuts 43,' and consequently the plunger loar and attached parts to ride upwardly on the screws.

During tl. f s upward movement the prese sure of the pressure yoke upon the ends oi the plunger har is released and the har is permitted to drop down hy gravity until the `Aupper edge oit the liar isclear of the short oi' forward wall 56,05 the notch 59, formed in the pressure yoke 4:7. lnolher words the plunger har remains stationary during the initial Vupward inoveinentuntil the pins 56, carried by the rockerarins engage the upper wallsot' the elongated slots or openings 57, in the ends of the plunger har at which time the short walls 58l just-,referred to will be clear of the topl edgeot theplunger bar.

rllhis is necessary because during the out ward swinging movement of the plunger ineinloei to inoperative position the latter swings outwardly atrgreatei' velocity than the pressure yoke, Vas will presently be described. y f

As the ends of the plunger har emerge ifi-oni the slot 55, and the slot (not shown) formed between theadjacent edges of the Vaiforeinentioued plates l18, and the plunger member clear et the top edge of the hopper portion 14tlie rollers 60, mounted on the pivot pins 6l, of theselinks 46, located `toward what may be termed the plungeiourfV movement side of the press enter the upwardly and outwardly curved guide channels or tracks 62, secured` to end plates 63, in turn attachedhy brackets 64, toA the upwardly proj ecting ends of the verticalheanis 9 and l0. The pressure yoke and parts cai'- ried thereby are thus deflected outwardly from the vertical path. The .fulcruni pins or studs 54, `which secure the rocker arms to the yoke travel the same curved path as the rolle-rs 60, hut the path of thestuds is nearer the center of the press by the distance between themselves and the axial center of the respective rollers. rr rl"lie reason for this arrangement lies in the necessity of locating the iLiressurey-yokes in close proximity to the screws 2l and 22 and tlierehynalsobringing the ends of the phiiigerjbar to a point just out `olf Contact. with the screws so as to avoid oi" reduce side pressure to a minimum. llleiice the rollers 60,7are located reino-te vfrom the screws. i i i if Vihiring the outward swinging movement ofthe plunger hoard acrosstlietop oi' the press chamber 66, it will be noted that the upper forked or notched ends ot the rocker arins engage respectively the oppo-A sitely disposed pins 67, carried by the plates At the time thefnlcruins 54,01 the rocker aiins are deflected outwardly fromV the normal vertical travel. by the rollers'60, engaging the channels 62, the upper end ot the rock-er arms will have reached a stationary pointin their upwardtravel and 'consequently the plunger movement will he accentuated. Thiscoinhined action of the pressure yoke guide roller and rocker arin gives Vthe inner 68, of the piston 69,y an out-` loo llO

headset ward movement `across the top of the press chamber in a substantially straight line while the outer edge 70,1ot the piston is swung upwardly. Consequently on thereturn move ment lthe piston does not dip into the material with which the press has been iilled while the plunger member was in inoperative position. 1

then the screws 2l and 22 are simulta-v neously rotated in a direction opposite to that required to swing the plunger'i'i'iember to inoperative position, the plunger member will be swung inwardly, the inner edge of theL pistonV travelling in` a substantially straight line a 'ew inches above thevtop of the pressv chamber until a centrall positifonhas been reached, with the guides 7l, on the inner links 46, in engagement with the respective vertical beams 9 'and 10, and the inner face of the plunger boardfengaging the long inner wall of slot 59, whichin edect 'forms a back stop, whereupon the plunger member moves downwardly until the piston reaches the lilling material. The plunger member is then halted and the pressure yokes descend until the upper end edges of the plunger board 39, engage in the notches 59, in the pressure yokes 47, and pressure is exerted against the plunger board by the yoke.

The cycle of operation just described is carried out indefinitely by any suitable` switch or motor reversingmechanism (not shown). Access may be had to the press chamber through a small trap door 85, formed in one of the doors 16.

Having thus described my invention, what I claim is:

l. In a balingv press, the combination with a chamber havingl an open end, of a plunger member movable transversely oi said chamber beyond said open end and also movable within said chamber, a screw, a nutthreaded u )on said screw a air of links ivotall connected to saidnut at oneend, a. pressure yoke pivotally connectedto the other ends ot said links, a rocker arm pivoted to said yoke, and means tor connecting said vplunger member to said rocker arm.

2, In a baling press, the combination with a vertical baling chamber having an open upper end, of vertical screws at opposite ends of said baling chamber, a plunger mem- ;er including a piston adapted to be raised and lowered within said chamber by the inner edgeof said screws, and a guide tor compelling said plunger member to move laterally outwardly and upwardly, and the inner edge of the piston to travel in substantially a straight horizontal Vline over and beyond the upper end of said chamber', the

corresponding movement of the outer end of the plunger member being ony a gradually increasing upward curve. I

3. In a baling press, the combination with outward rno'vemei'it et the inner edge of the' plunger member being in a substantially straight line "and the balanceof said outward movement on a gradually increasing upward curve, the corresponding movement of -the outer iend of the plunger member being on a gradually increasing upward curve.

ll; In a balingl press, L'the combination with a lchamber having an open upper end, of a plunger `member including a piston, means for raisingsaid yplunger member until ,the

piston has cleared the said open end, and means' causing the plunger' member to swing outwardly at the completionoi said raising movement, and'c'au'sin'g the inner edge ot' the piston to travel over and beyond thev upper end vof said chamber, the initial outward movement of the inner edge of the plunger member being in a substantially straight line and the balance of said outward movement on a gradually increasing upward curve, the corresponding movement of the outer end of the plunger member being on a gradually increasing upwardcurve. f

5. In abaling press, the combination with a chamber having an open upper end, of a screw, and a plunger member including a piston connected to said screw and movable within said chamber,and means for automatically causing said plunger member to swing outwardly, and to cause the inner edge of the piston to travel over and beyond the upper edge of said chamber, the initial outward movement oit the inner edge of the plunger member being in a substantially straight line and the balance of said outward movement on a gradually increasing upward curve, the corresponding movement of the outer end ofthe plunger member being on a gradually increasing upward curve.

6. In a baling press, the combination with a chamber havingan open end, of a plunger member including a piston movable transversely of said chamber beyond said open end and also movable within said chamber, a screw connected to said plunger member for actuating the same, and means for compelling said plunger member to swing transversely oi said chamber beyond said open end to'open position upon rotation ot'said screw in one direction and to return into registration with said open end upon rotation of said screw in the opposite, direction, said means causing the inner edge of said piston to' travel in a substantially straight horizontal line to and fro across and above the said open end during said swinging movements of said plunger, the corresponding movement of the outer end of the plunger member belngon a gradually increasing upward curve.

i7. A baling press comprising la baling chamber open at its upper end, plunger aotuating screws, a plunger movable transversely of said chamber beyondv said openend and also movable within said chamber, nuts mounted on said screws but fixed against rotation, pressure yoles adapted to bear on said plunger member during the working stroke thereof, means pivotally connecting said yoles to said nuts, and rocker arms pivotally connected to said pressure yokes and supporting said plunger member.

S. A baling press comprising a baling chamber open at its upper end, plunger aetuating screws,a plunger member including a plunger board movable transversely oi said chamber beyond said open end and also movable within said chamber, nuts mounted on said screws but fixed against rotation, pressureyolres-adapted to bear on said plunger mounted on said screws but fixed against ro- 35` tation, pressure yolres adapted tobear on said plunger member during the working stroke thereof, means pivotally connecting said yokes to said nuts, and rocker arms pivotally connected to said pressureV yokes and 40 supporting said plunger member, saidv yolies being formed with stops to limit the inward movementlof said plunger member.` y 1n testimony whereof I affix my signature.

HERMANN HILL. 

